There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

A four-digit number (not beginning with 0) can be represented by ABCD. There is one number such that ABCD=A^B*C^D, where A^B means A raised to the B power. Can you find it?

Find the hidden panda in the image below.

Using the clues below, what four numbers am I thinking of?

The sum of all the numbers is 31.
One number is odd.
The highest number minus the lowest number is 7.
If you subtract the middle two numbers, it equals two.
There are no duplicate numbers.

Some friends went on a vacation to a resort. It was raining heavily and it kept raining for thirteen days.

When it rained in the morning, the afternoon was beautiful and when it rained in the afternoon, the day was blessed with a clear morning.

Overall, the friends experienced eleven nice mornings and twelve nice afternoons. Can you find out the number of days they spent on vacation?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?